UMI-0055EE-B1 Unitronics | 5.5 kW 3 Phase 380-480VAC | VSD

UMI-0055EE-B1 Unitronics | 5.5 kW 3 Phase 380-480VAC | VSD

Unitronics UMI-0055EE-B1 variable frequency drive, a 5.5 kW three phase AC inverter with STO, dynamic braking, C3 EMC filter, Modbus RTU and RS-485 communication for industrial motor control and automation systems.

SKU: UMI-0055EE-B1Alt SKU: UMI0055EEB1MPN: UMI-0055EE-B1
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Why Choose the Unitronics UMI-0055EE-B1 Variable Frequency Drive?

The Unitronics UMI-0055EE-B1 is a powerful and heavy-duty AC variable frequency drive (VFD) designed for precise speed and torque control of three-phase motors in demanding industrial automation and machine building applications. As part of the Unitronics UMI-B1 EU series, this inverter delivers reliable performance, flexible communication and efficient motor control for machinery requiring robust variable speed operation.

This drive combines high-performance VFD operation with an integrated C3 EMC filter, built-in dynamic braking and Safe Torque Off functionality. Its IP20 enclosure and wall or flange mounting format make it suitable for installation inside electrical control panels, machinery cabinets and OEM automation systems.

With a rated output power of 5.5 kW (7.5 HP) and a three-phase 380–440 V AC supply, the UMI-0055EE-B1 is ideal for conveyors, fans, compressors, filling machines, packaging equipment and food production systems requiring dependable variable speed motor control.

Key Advantages

  • Heavy-duty variable frequency drive designed for industrial machinery applications.
  • 5.5 kW / 7.5 HP motor power rating suitable for demanding equipment.
  • Three-phase 380–440 V AC input compatible with industrial power supplies.
  • 14 A nominal output current for reliable motor operation.
  • Integrated Safe Torque Off (STO) with PLe, SIL3 and Cat.3 safety ratings.
  • Built-in dynamic braking and integrated C3 EMC filter.
  • Modbus RTU and RS-485 communication for PLC and HMI integration.

Key Features

  • Unitronics UMI-B1 EU series inverter.
  • 5.5 kW / 7.5 HP rated output power.
  • 14 A nominal output current.
  • Three-phase 380–440 V AC input supply.
  • 0–400 Hz output frequency range.
  • Integrated Safe Torque Off (STO) functionality.
  • RS-485 communication interface with Modbus RTU support.
  • SVPWM and sensorless vector control functionality.
  • IP20 enclosure for control cabinet installation.

Reliable Motor Control for Industrial Machinery

Variable frequency drives such as the Unitronics UMI-0055EE-B1 regulate motor speed by adjusting output voltage and frequency. This improves process accuracy, reduces mechanical stress and helps lower energy consumption in motor-driven machinery.

The UMI-B1 EU series is designed for automation environments where compact installation, reliable control and flexible communication are essential. With Modbus RTU, RS-485 connectivity, STO safety functionality, dynamic braking and an integrated EMC filter, this drive can operate as a stand-alone inverter or as part of a PLC-controlled machine system.

Typical Applications

  • Industrial conveyors and material handling systems.
  • Packaging and filling machinery.
  • Fans, blowers and ventilation systems.
  • Compressors and processing equipment.
  • Food production machinery.
  • OEM automation and machine building systems.

Technical Specifications

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Power 5.5 kW
Current 14 A
Voltage 480 V
Phase Three Phase
IP Rating IP20
EMC Filter Industrial
Series UMI-B1 EU Series
Product type AC variable frequency drive / inverter
Rated output power 5.5 kW (7.5 HP)
Rated output current 14 A
Input voltage 380–440 V AC
Input phases 3-phase
Network frequency 50 / 60 Hz
Output frequency 0–400 Hz
Protection rating IP20
Mounting type Wall / flange mounting
Safety rating PLe, SIL3, Cat.3
EMC Filter Integrated C3 filter
Dimensions (H × W × D) approx. 256 × 146 × 167 mm
Operating temperature -10 to +50 °C

Frequently Asked Questions

What is the Unitronics UMI-0055EE-B1 used for?

This drive is used to control the speed and torque of three-phase AC motors in industrial automation, machinery and process control applications.

What motor power is supported by this drive?

The UMI-0055EE-B1 supports motors with a rated output power of approximately 5.5 kW (7.5 HP).

What supply voltage does the drive require?

The drive operates from a three-phase 380–440 V AC supply.

Does this drive include safety functionality?

Yes. The UMI-0055EE-B1 includes integrated Safe Torque Off (STO) functionality with PLe, SIL3 and Cat.3 safety ratings.

Does the UMI-0055EE-B1 support communications?

Yes. The drive supports Modbus RTU communication via an RS-485 interface, allowing integration with PLCs, HMIs and industrial automation systems.

Trusted by Automation Engineers Worldwide

Unitronics UMI-B1 EU series variable frequency drives are trusted by machine builders and automation engineers for heavy-duty motor control, efficient operation and flexible integration into industrial control systems.